Prairie Cordgrass Plant Care
Spartina pectinata Bosc ex Link
Updated · Sources · How we source care data
Sporobolus michauxianus is a species of grass known as prairie cordgrass, freshwater cordgrass, tall marshgrass, and sloughgrass. It is native to much of North America, including central and eastern Canada and most of the contiguous United States except for the southwestern and southeastern regions.
Every 3–7 days
Full sun to partial shade
50–90°F
40–70%
At a glance
How do you care for Prairie Cordgrass?
Water Prairie Cordgrass every 3–7 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–90°F (10–32°C) and 40–70% humidity.
Where Is the Prairie Cordgrass Native To?
What Is the Prairie Cordgrass?
Prairie Cordgrass (Spartina pectinata) belongs to the Poaceae family within the Spartina genus. Prairie Cordgrass is native to much of North America, including central and eastern Canada and most of the contiguous United States except for the southwestern and southeastern regions. Prairie Cordgrass is also known as Freshwater Cordgrass, Big Cordgrass.
Prairie Cordgrass displays a tall, grassy clumps growth habit, reaching up to 4 ft tall with a spread of approximately 2 ft. Prairie Cordgrass produces feathery flower spikes in shades of green, brown, or purple.
Leaf size: approximately 12 inches.
How Often Should You Water a Prairie Cordgrass?
Spartina pectinata requires watering every 3–7 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 3–7 days
Let soil partially dry between waterings
What Light Does the Prairie Cordgrass Need?
Prairie Cordgrass thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Prairie Cordgrass Prefer?
Spartina pectinata grows best at temperatures of 50–90°F. Prairie Cordgrass prefers humidity levels of 40–70%.
Temperature
50–90°F
Humidity
40–70%
What Soil Mix Works Best for a Prairie Cordgrass?
Moist, fertile soil with good drainage. Good drainage is essential for Prairie Cordgrass to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Prairie Cordgrass?
Divide clumps every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Prairie Cordgrass?
Prairie Cordgrass can be propagated through division, seed.
Is the Prairie Cordgrass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Prairie Cordgrass, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Prairie Cordgrass?
Prairie Cordgrass is susceptible to aphids, grasshoppers, caterpillars. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Prairie Cordgrass Need?
Prairie Cordgrass grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Prairie Cordgrass is native to much of North America, including central and eastern Canada and most of the contiguous United States except for the southwestern and southeastern regions. In cooler regions, grow Prairie Cordgrass as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Prairie Cordgrass is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Spartina genus — compare its care with other Spartina species on PlantoScan.
Spartina is part of the Poaceae plant family — browse all Poaceae genera and species.
Prairie Cordgrass thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Spartina pectinata Bosc ex Link, family Poaceae (first published in Jahrb. Gewächsk. 1(3): 92 (1820)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Prairie Cordgrass, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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